baber/WOPTO huggingface dataset:
Patent GB-545551-A (GB)
Title: Manufacture of electrical insulating materials
IPC: H01B3/36
Filed: 1939-11-13
Abstract: 545,551. Phenol aldehyde condensates &c. GES. ZUR FORDERUNG DER FORSCHUNG AUF DEM GEBIETE DER TECHNISCHEN PHYSIK AN DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE. Nov. 13, 1939, Nos. 29965, 29966 and 29967. Convention dates, Nov. 11; 1938, Jan. 14, 1939, and Oct. 19, 1939. Sample furnished. [Class 2 (iii)] Hardenable condensation products suitable for electrical materials and comprising condensates of hydroxyaryl compounds with more than an equimolecular proportion of formaldehyde in which the aryl hydroxy groups are etherified to at least 25 per cent. of the possible etherification, are made by condensing the hydroxyaryl compound with a part or the whole of the formaldehyde and etherifying the resulting condensation products, in the presence of alkali, with an inorganic acid ester of an araliphatic alcohol containing no polar groups other than the group which enters into reaction; the remainder of the formaldehyde, when required, is caused to react during or after etherification. The initial condensation product may be prepared under alkaline or acid conditions ; in the latter case, the etherifying solution is rendered alkaline before or during etherification. For etherification, the quantity of alkali is proportional to the degree of etherification ; part of the akali may be added during etherification. Specified esters are benzyl chloride, dibenzyl sulphate, styryl chloride and cinnamyl chloride. Examples are given of the production of condensates from phenol or phenol and cresol with formaldehyde etherified with the aid of benzyl chloride. A sample has also been furnished of a phenol-formaldehyde condensate etherified with cinnamyl chloride. The products may be used as cast resins or admixed with fillers, dyestuffs, softeners &c. as lacquers, e.g. for enamelling wires, binding-agents, for the production of moulded and laminated articles &C.
Patent GB-657093-A (GB)
Title: Electron tube containing a plurality of aligned wound grids
IPC: H01J19/42
Filed: 1947-11-11
Abstract: 657,093. Making grids for electron discharge tubes. RADIO CORPORATION OF AMERICA. Nov. 11, 1947, No. 30005. Convention date, Nov. 26, 1946. [Class 83 (ii)] [Also in Group XL (a)] The aligned grids of an electron tube (see Group XL (a)) are made by cutting the supporting rods 19 to length, holding between members 39, 40, Fig. 5, and swaging by members 36, 37 against anvils 41, 42 to form rectangular pro. jections and recesses. The rods are then mounted in a winding machine between aligned chucks 22, 23, Fig. 7, provided with a notch cutting wheel 26 and peening wheel 27 for closing the groove over the embedded grid wire. Either the chucks or the wheels are held stationary, the other part being rotated.
Patent GB-1019774-A (GB)
Title: Process for the production of anthraquinone dyestuffs
IPC: C09B1/20
Filed: 1962-08-03
Abstract: Anthraquinone dyestuffs are made by condensing not less than 2 mols of an anthraquinone - 2 - aldehyde, including an anthraquinone-2-aldehyde having a heterocyclic ring fused in the 1:9-position, or not less than 2 mols of a mixture of two such anthraquinone-2-aldehydes, or not less than 2 mols of the corresponding anil or anils, with 1 mol of 2:5-diamino-1:4-dithiobenzoquinone. The invention further comprises dyestuffs of the formula: <FORM:1019774/C4-C5/1> wherein X and Y are alike and stand for 1:9-thiazolanthrone-2-yl radicals, and dyestuff mixtures comprising asymmetrical dyestuffs of the general formula above wherein X and Y are different and stand for anthraquinon-2-yl radicals at least one of which is a 4-acylaminoanthraquinone-2-yl radical and both of which may be substituted by halogen, amino, further acylamino, alkyl sulphonyl, phenyl suphonyl or sulphonamido, together with the corresponding symmetrical dyestuffs obtained by replacing respectively Y by X and X by Y. Dyestuffs containing a 1-chloro-anthraquinon-2-yl radical may be further reated with p-tolune sulphonamide and the product saponified to convert the chlorine to amino, and dyes containing a 1:4- or 1:5-diamino-anthraquinone-2-yl radical may be subsequently acylated at the 4- or 5-position.  The dyes as such or their leuco ester salts dye and print animal, vegetable or artificial fibres in yellow, red, blue, grey and green shades.
Patent GB-400417-A (GB)
Title: Improvements relating to fluid delivery pumps for use with bottles and like containers
IPC: F04B9/14
Filed: 1932-10-29
Abstract: 400,417. Dispensing liquids. COUNTY CHEMICAL CO., Ltd. and HILL, W., Bradford Street, Birmingham. Oct. 29, 1932, No. 30350. [Class 102 (i).] In a fluid delivery pump for use with a bottle &c. the pump barrel at its upper extremity is mounted within an aperture in an internally threaded closure cap engageable with the mouth of the bottle &c. and the delivery conduit conducting from the lower part of the pump is taken alongside the barrel and conducted through a lateral or other aperture in the cap and finally directed downwardly for delivery purposes. As shown, the barrel is provided with an air vent a<2>, a non-return valve a<1>, and a return spring d. The cap c may be of metal or the material registered under the Trade Mark " Bakelite."
Patent GB-1483301-A (GB)
Title: Speed control and governor mechanism for an electric moto
IPC: H02P7/06
Filed: 1975-07-21
Abstract: 1483301 Motor controllers; speed-responsive switches SCOVILL MFG CO 21 July 1975 [22 July 1974] 30422/75 Addition to 1426001 Heading H1N A governor for an electric motor (which may also form part of a manual speed control) comprises a rotary surface driven by the motor and formed with spaced protrusions 416, an assembly including a pair of substantially parallel arms 366, 368 with co-operating contacts 414, 398 in series with a winding of the motor, the arm 368 having a portion 404 resting on the rotary surface, means biasing the arms so that the contacts normally engage but when a protrusion 416 passes, the arm 368 lifts the other arm 366 but lowers more rapidly than said other arm 366 so that the contacts are interrupted for a time, whereby if the motor speed drops the arm 366 will follow the movement of arm 368 more closely to increase the power supplied to the motor and tend to restore the speed. As shown the arm assembly is carried on a flange 364 depending from a plate 350 which is pivoted on a pin 351 and has gear teeth 356 meshing with a pinion 324 manually rotatable by a speedcontrol knob (318, Fig. 1, not shown) of a kitchen mixer. The protrusions 416 are moulded on the top surface of a nylon gear-wheel 342 which meshes with a worm on the motor shaft. Since protrusions 416 are tapered and extend for various distances radially the frequency of their impact on rib 404 of arm 368 diminishes as the arm assembly is moved in towards the centre of wheel 342, and hence the motor speed increases. Arm 368 has a resiliently flexible portion 395 which is bent to give a strong downwards bias holding nib 404 against wheel 342, while arm 366 is rigid and urged gently downwards by a compression spring 412 which also urges cross portion 408 into electrical contact with flange 364. The arm 368 is secured in an insulating block 370 and has a side tag 394 for connection in the motor circuit, which is normally completed via contacts 398, 414, arm 366, flange 364, and plate 350 to connection strip 358. When pinion 324 is turned fully clockwise (fast speed) the nib 404 of arm 368 sides up on central annulus 418 of wheel 342 and jams arm 366 under frame block 352 (as in Fig. 15, not shown) to ensure continuous closure of contacts 398, 414. Fully anticlockwise movement of pinion 324 to an OFF position causes a lug 362 moving therewith to lift strip 358 and break the motor circuit. Contacts 398 and 414 are preferably of tungsten.
Patent GB-281630-A (GB)
Title: Improvements in Typewriters
Inventor: KAEPPLER PAUL
IPC: B41J11/14
Filed: 1927-11-12
Abstract: 281,630. Kõppler, P. Dec. 1, 1926, [Convention date]. Carriage - shift mechanism; line-locking devices; letter-spacing mechanism; ink-ribbon mechanism.-In machines having the carriage arranged to shift in an inclined path, the connections between the keys and the parts of the letterspacing, line-locking, and ribbon-vibrating mechanisms that shift with the carriage include members abutting on arms or the like which are inclined in the direction of the shift path, the members sliding over the arms and maintaining engagement therewith when the carriage is shifted. In the machine shown in Figs. 4 and 5, the keys are mounted on parallel levers 5, 6, pivoted on rods 8, 9, the levers 6 associated with the action keys 1 - - 4 having arms 7 connected by links to the type-levers 15, and extensions 12 engaging a universal bar 13 secured to arms 21 on a rock-shaft 22 mounted in the framework 11. The bed of the carriage 29 is secured to bars 30 mounted on arms 38, 39 secured to rock-shafts 36, 37, the arms 38 having extensions 35 engaging extensions of the levers 6 associated with the shift-keys 31. The rock-shaft 22 is provided with an inclined arm 27 abutting on a pin 40 on an escapement rocker 42 mounted on a shaft 41 on the carriage bed and having a pin 44 for operating a dog 43. The universal bar is automatically locked at the end of a line by means of a pin 58 on a slide 59 which is mounted on the carriage bed and is moved by the line-locking stop, the pin being thereby interposed in the path of an inclined arm 24 on the rock-shaft 22. In some cases the pin and inclined arm are arranged on the arm 24 and slide 59 respectively. The carriage shifts in a rearwardly inclined path, and the pins 40, 58 slide along the arms 27, 24 during shift. An ink-ribbon vibrator is operated by linkage comprising a lever mounted on the carriage bed and abutting on an inclined arm on the rock-shaft 22, the lever sliding along the arm during shift. A ratchet-wheel 56, Fig. 5, on the ribbon-feed shaft 57 engages a pawl. 55 mounted on an arm 26 on the rock-shaft 22. Accenting-arrangements. - The escapement. operating arm 27 is pivoted on the rock-shaft 22, and on operating the accenting-keys is moved laterally out of engagement with the pin 40 on the rocker 42, letter-spacing being thereby suspended. For this purpose, the extensions of the levers associated with the accenting-keys engage a member 47 on a rock-shaft 48 provided with a cam 49 for moving laterally the arm 27. Space-key actions.-The space-key 19 is connected to a member 16 having arms 20 engaging rollers 45 on the arms 21 carrying the universal bar 13.
Patent GB-754811-A (GB)
Title: Reflex klystron oscillator tube
IPC: H01J25/24
Filed: 1954-10-22
Abstract: 754,811. Velocity modulated tubes. SPERRY CORPORATION. Oct. 22, 1954 [Dec. 2, 1953], No. 30488/54. Class 39 (1). A reflex lilystron with a residual ion focused beam has between the cathode and resonator gap a conductive tube 26, Fig. 1, which carries one or more fins or vanes 50, preferably channelshaped, which project inwardly but which leave a central passage for the electron beam; the members 50 trap secondaries produced in tube 26 by reflected electrons, and this improves operation of the tube in frequency modulated circuits. As shown, the fins or vanes 50 of nickel are spot-welded to nickel sleeve 52, pressed into tube 26 and members 50, 52 are carbonized to reduce secondary emission due to impact of reflected electrons. It is stated that when used for frequency modulation, modulation of the reflector voltage causes modulation of the secondaries generated at 26 and consequently tends to excite plasma oscillations of the ions trapped in tube 26. This causes an enlargement of the beam diameter and a consequent undesired shift in carrier frequency, i.e. the basic resonator frequency, thus distorting the transmitted information. The vanes or fins 50 tend to trap secondaries produced in 26 and modify the potential drop between the tube walls and beam which is also normally conducive to the setting up of plasma oscillations. The ions trapped within tube 26 cause ion focusing of the beam. The vanes 50 do not extend the whole length of tube 26 which has resonator grid 28 and smoother grid 31 at its ends. The device is tuned by screws 40 reacting against springs 44 to deform flexible wall 16, the spring pressure being varied by studs 45 having adjusting nuts 47. The modulation frequency applied to the reflector is varied over a video frequency band.
Patent GB-282359-A (GB)
Title: Signal device for use on motor and other vehicles
IPC: H01H13/16
Filed: 1927-11-14
Abstract: 282,359. Barbarou, M. J. B. Dec. 16, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Push-button, switches .-A rear signal lamp, indicating the stopping or slowing of a roadvehicle, is lighted by the initial movement of the brake, clutch, or accelerator pedal or lever. When the footplate G of the brake pedal is depressed against the resistance of a spring C, its contact member H bridges two contact pieces F, F<1> carried by the pedal body, thereby completing the circuit of the signal lamp.
Patent GB-244910-A (GB)
Title: Improvements in connection with fastenings for tiles and for like purposes
IPC: E04D1/34
Filed: 1924-12-19
Abstract: 244,910. Reed, G., H. Dec. 19, 1924. R o o f s ; walls.- Tiles are fastened to roofs and walls by bending over the free ends of fixing pins 8, which are passed through holes in the tiles and through a washer or distancepiece 12 mounted on the free end of each pin and resting on the upper or outer surface of the tile. The pins are of copper and have a head 11, and the washers are of conical, domed or cylindrical form, the pins being bent to hook shapa in the latter case. At the roof edge, the tiles are gripped by members 13, which may be of channel or angle-shape, or in the form of a lath fixed above and below the tiles. A moisture-collecting groove 15, Fig. 2, may be provided on the channel member. Specification 20882/12 is referred to.
Patent GB-1200557-A (GB)
Title: Improvements in or relating to pneumo-hydraulic lifting mechanisms
Inventor: MADR JOSEF
IPC: A61G15/02
Filed: 1968-06-27
Abstract: 1,200,557. Hydro-pneumatic jacks. CHIRANA ZAVODY ZDRAVOTNICKF TECHNIKY OBOROVY PODNIK ZAVOD STRASNICE. 27 June, 1968 [5 July, 1967], No. 30702/68. Heading B8J. [Also in Division F1] An hydraulic hoist suitable for a dental chair comprises a piston 13, Fig. 4, having its rod 14 projecting through the upper end of a cylinder 12 and through an end plate 16 by which the cylinder 12 is connected to the upper end of an adjacent air-pressurized hydraulic reservoir 8, and the adjacent lower ends of the cylinder and reservoir are closed by a connecting plate 11 having two built-in compressed air actuated valves 10, 18, Fig. 7, for controlling hydraulic flow from reservoir 8 through a channel 26 to cylinder 12 and from cylinder 12 through a channel 24 to reservoir 8. In operation and to raise the piston 13, a switch 4, Fig. 8, is closed which opens a solenoid valve 3 and allows compressed air to flow through a line 2 to the gas space of reservoir 8 and through a line 9 to act on a diaphragm of the valve 10 and thus open valve 10 and allow access of pressurized hydraulic fluid through channel 26 to the underside of piston 13. Upward movement of piston 13 is stopped when switch 4 is opened and hence valve 3 is closed to passage of compressed air but servos to vent the air space of reservoir 8 to atmosphere. Downward movement of piston 13 is effected by closing a switch 7 to open a solenoid valve 6 which connects the compressed air source through a line 17 to the diaphragm of the valve 18 thereby opening said valve to allow hydraulic flow from cylinder 12 through channel 24 to the reservoir 8 which is at atmospheric pressure. The point of entry of channel 24 to reservoir 8 is controlled by a throttle screw 22 and an air bleed hole 25 in the base of the working cylinder is controlled by a screw 23.
Patent GB-520533-A (GB)
Title: Improved process of melting down and remelting old aluminium, aluminium scrap, residues, dross and ashes
IPC: C22B21/06
Filed: 1938-10-24
Abstract: 520,533. Refining aluminium. SCHMIDT, K. Oct. 24. 1938, No. 30722. Convention date, Oct. 27, 1937. [Class 82 (i)] A process of melting down aluminium scrap, residues, dross and ashes consists in forming in a rotary furnace, a salt melt consisting of a mixture of sodium and potassium chlorides in proportions such. that the mixture fuses at not more than 750‹C., and introducing into the molten bath approximately the same amount of aluminium, after melting and tapping of which the bath is re-used up to five times. The salt mixture may consist of approximately 56 parts of sodium chloride and 74 parts of potassium chloride, melting at 664‹C. The exhausted salt bath is tapped, ground after solidification, separated from metal particles, leached with water, and recovered by evaporation, after which it is re-used after the loss in salt has been made good.
Patent GB-946648-A (GB)
Title: Improvements in and relating to polychloroprene
IPC: C08F36/16
Filed: 1962-08-10
Abstract: 946,648. Polychloroprene. E. I. DU PONT DE NEMOURS & CO. Aug. 10, 1962 [Aug. 11, 1961], No. 30744/62. Heading C3P. Prevulcanized polychloroprene latex is prepared by polymerizing chloroprene in aqueous emulsion in the presence of from 0À05 to 2 parts, by weight, per 100 parts of monomer, of a dialkyl xanthogen disulfide having alkyl groups containing 1 to 8 carbon atoms, to the maximum monomer conversion at which the resulting polymer is still soluble in benzene, followed by rendering the polymer insoluble in benzene by treatment with at least 0À02 mole per 100 parts of polymer, of hydrazine and/or a primary monoamine and/or a primary polyamine, in which amines the amino group is not directly attached to an aromatic nucleus, at a pH greater than 10 and in the absence of atmospheric oxygen. The preferred dialkyl xanthogen disulphides are are di-n-propyl xanthogen disulphide, diisopropyl xanthogen disulphide and the dibutyl xanthogen disulphides. The polymerization is carried out in aqueous emulsion at a pH greater than 10 using any of the suitable conventional emulsifying agents at a temperature between 0‹C.-80‹C., the concentration of monomeric material being 30% to 60% by weight based on the total weight of the emulsion. The preferred agents for prevulcanizing the polychloroprene cluster are hydrazine and/or hexane diamine. Other suitable primary amines are R-NH 2  in which R is an alkyl group containing 1-10 carbon atoms, which alkyl group may be branched or unbranched and may be substituted by aryl groups, H 2 N-R <SP>1</SP>-NH 2  in which R<SP>1</SP> is an alkylene group containing 2-10 carbon atoms, H2N- (CH 2 CH 2 NH)x-H in which x is an integer of from 2-5. The treating agents are added to the latex, in a dilute form, in the absence of oxygen and at a temperature of from 10‹C.-100‹C. The latex prepared in accordance with this invention is particularly suitable for the preparation of dipped films which cure rapidly and have excellent tensile properties. U.S.A. Specifications 2,467,769 and 2,576,009 are referred to..
Patent GB-447827-A (GB)
Title: Improved manufacture of electrodes for electrolytic processes
IPC: C25B11/04
Filed: 1934-10-26
Abstract: A platinum-coated wire is annealed above 500 DEG  C., for example, at 700 to 900 DEG  C., for 20 to 25 minutes.
Patent GB-1011848-A (GB)
Title: Chlorine, hydroxy and alkoxy terminated trimethylsiloxysiloxanes
IPC: C07F7/18
Filed: 1964-08-04
Abstract: The invention comprises siloxanes of the formula <FORM:1011848/C3/1> wherein X is a halogen atom or an alkoxy or hydroxyl radical and n is zero or an integer. The halogen-terminated siloxanes can be made by halogenating the corresponding H-containing siloxanes (which can be made by co-hydrolysis and condensation of [(CH3)3SiO]2Si(OCH3)2 and [(CH3)3SiO]2H.SiOCH3), and the hydroxylate and alkoxylated siloxanes can be obtained from the halogenated siloxanes by hydrolysis and alcoholysis respectively.  Examples describe the preparation of {[CH3)3SiO]2XSi}2O, in which X is (1) Cl, (2, 3) -OH and (4) -OCH3, -OC2H5, -OCH(CH3)2 and -OC4H9; Example (5) describes the preparation of siloxanes of the above general formula in which n is 1, 2, 3, 4, 5, 10, 15, 25, 50, 100 and 1500, and X is Cl, -OH, or alkoxy as specified in Example (4).  Uses.-Fluid springs, hydraulic fluids and lubricants or as protective coatings for metals, wood and glass.  The H-containing siloxanes can be made as follows: <FORM:1011848/C3/2>
Patent GB-208160-A (GB)
Title: Process and apparatus for two-stage combustion of watery, woody and bituminous fuels
IPC: F23C1/00
Filed: 1923-12-07
Abstract: 208,160. Walther et Cie, Akt.-Ges., Otte, W., and Birkner, M. Dec. 9, 1922, [Convention date]. Pulverulent-fuel furnaces.-Fuels of a watery, woody, or bituminous nature are rendered suitable for combustion in furnaces by first subjecting them to a drying, degasifying, and coking process after which they are cooled, pulverized in the presence of an inert medium, and the ground fuel immediately burnt. Figs. 1<a>, 1<b> show the plant by which the invention is carried into effect. The fuel to be treated passes from a hopper 3 on to the stepped grate 2 of a boiler furnace comprising a drying-zone 5 separated by a bridge 4 from a zone 6, where the fuel is degasified and incompletely burnt so as 'to form a kind of coke. The coke falls from the grate into a storage hopper 7, the lower end of which is provided with channels 8 for the circulation of a cooling-medium such as water or air, and is then fed by a reciprocating piston 10 through a tube 9<a> to a disintegrator 17 combined with a blower 18 for circulating an inert gas. The blower is driven by an electromotor 19, which also drives through gearing the piston 10. The pulverized coke is conveyed through the pipe 20 to a separator 21, where the coke dust falls into a hopper 23 and the gas returns through a pipe 22 to the disintegrator. The fuel is conveyed by a worm 24 at the base of the hopper 23 to a burner 28 fed with air by a blower 27, the combustible mixture being ignited in the nozzle 29 and serving to heat a boiler 31. A modified form of plant for dealing with wet fuels is shown in Fig. 2. The fuel is dried, degasified, and partly burnt on the grate 32, the drying and degasifying being assisted by the heat of combustion of the powdered fuel at the nozzle 42. The gases from the fuel on the grate 32 pass through a passage 46 and are burnt at 47. According to the Specification, as open to inspection under Sect. 91 (3) (a), peat, wood, bark waste, bagasse, cocoa-nut shells, and rice-shells are used as fuel. The blower 18 circulates air which becomes chemically inert owing to the oxygen being consumed by the hot coke and serves as a cooling agent, thus permitting the cooling means 8 to be dispensed with if desired. If, however, the coke be sufficiently cooled in the hopper 7, it may be fed to any ordinary mill and ground before being delivered to the furnace. The grate 32 may be of the travelling type or may be provided with mechanical means for turning over the fuel. The powdered coke may be utilized in an internal combustion engine. This subject-niatter does not appear in the Specification as accepted.